Cobo Vault firmware version V2.2.0 (Multi-coin) or later will allow you to use the Polkadot.js to send and receive DOT/KSM.
1. Cobo Vault Essential or Pro upgraded to firmware version V2.2.0 (Multi-coin) or later. (Upgrading Firmware)
2. Polkadot.js already paired with your Cobo Vault (Instructions here)
Receiving DOT/KSM (Take DOT as example)
You can use receiving addresses displayed by either the Cobo Vault hardware wallet or Polkadot.js to receive DOT/KSM.
1. Displaying Address on Cobo Vault: touch a receiving address to display it as a QR code.
2. Displaying Addresses on Polkadot.js: click “account” to display the receiving address.
Sending DOT/KSM (Take DOT as example)
1. Generate DOT transaction on Polkadot.js
1) Click [send] and set the [send from account], [send to address] and [amount]. Then click [Make Transfer] -> [Sign via Qr].
2) Get the unsigned transaction in QR code format.
2. Using Cobo Vault Hardware Wallet to Sign Transaction
1) Touch the “scan” icon on the top right of the main page on the Cobo Vault hardware wallet. Scan the QR code displayed on the Polkadot.js interface.
2) Touch [Sign] and enter your password to sign the transaction. Get the signed transaction information in QR code format.
3. Using the Polkadot.js to Broadcast Transactions
1）On Polkadot.js interface, scan the QR code displayed on Cobo Vault hardware wallet. Once scanning completed, the transaction will be broadcasted directly to the Polkadot blockchain.